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121 Conventional oil shale mining method has higher coat because of restricting by a good many factors.

122 The sandstone and shale units are of the same age.

123 A metamorphic rock intermediate between shale and slate , that does not possess true slaty cleavage.

124 Based on the results of dispersion experiments on cores of sand and shale, the paper analyzed the variability of acoustic dispersion for dry and water-saturated cores.

125 We must find economical methods for extracting oil from shale.

126 Shale gas, according to the committee, accounts for two-thirds of America's technically recoverable reserves, enough to supply the country for 90 years.

127 The thermal dissociation of the potassium shale - potash system has been experimentally investigated.

128 There are also unconventional oil resources now being brought to the market, including shale oil from tar sands.

129 This article envisions the trends in the development of oil shale retorting technologies and concludes that Estonia′s experience and practice can be used for reference for China.

130 Besides, Estonia, China, German, and Israel have the oil shale combustion equipment for producing power.

131 It is used for low compressive strength and exceeding soft formation of high drillability, such as, shale, clay, sandstone, soft limestone, halite(sentencedict.com), gypsum etc.

132 The limestone, sandstone and shale of this area were soft.

133 The heat contained in stack gas exceeds that required for drying raw oil shale.

134 Therefore, osmotic phenomenon exists in the system of shale and water based fluid, but shale is a non-perfect semipermeable membrane.

135 To meet the need of big screening area of shale shaker, a kind of trimotor ellipse vibrating shale shaker based on synthesizing of linear and circular motion is presented.

136 The Eagle Ford shale is seen as an especially attractive prospect as it is believed to be rich in natural gas liquids and condensates, which command higher prices than regular natural gas.

137 The sediments are mudstone , shale, carbonaceous mudstone and marl of deep and semi - deep lake facies.

138 Then effective methods of enhancing seepage of oil shale are discussed in different depth.

139 Shale gas is also likely to divert investment in Britain from pricier but carbon-free nuclear and renewable-energy sources.

140 The key parameters of the oil shale resource appraisement consist of ore-bed recoverable thickness(H), orebody effective area(S), orebody weight(D) and orebody resource types, etc.

141 The geochemical characteristics of dark gray mudstone and shale in evaporite layers record the sedimentary environment of salt lake.

142 Two-step approximate formula of seismic velocity in sand and shale formation is given on the basis of core analysis. logging data interpretation and wave velocity mechanism analysis.

143 Now, Ridley is feeling optimistic about a gas that is produced from shale and is widely used in the US but not elsewhere.

144 Gold mineralization of the zone is confined only to the Cambrian carbonaceous shale overlain by siliceous rocks,[www.Sentencedict.com] and apparently controlled by a premineral tough shear zone.

145 In this paper, the industrial testing results of proportioning and sintering cement clinker with argillaceous shale instead of clay.

146 Raw oil shale is transported into four measuring bins by belt conveyers.

147 More ammonium sulphate solution is being recovered in the process of distilling shale oil.

148 The shale oil from oil shale by the retorting technology is an ideal substitute for nature oil.

149 And China, which also has lots of unexploited shale gas, has few scruples about burning cheap coal.

150 Aiming at using actuality for oil shale of small size in china, Making use of equipment of Pyrolysis that developed by ourselves distilled shale oil from oil shale of small size in lab.